<template>
    <el-form inline="true">
      <el-form-item>
        <selector v-model="params.difficulty" placeholder="请选择题目难度" style="width: 200px;"></selector>
      </el-form-item>
      <el-form-item>
        <el-input v-model="params.title" placeholder="请您输入要搜索的题目标题" />
      </el-form-item>
      <el-form-item>
        <el-button plain @Click="onSearch">搜索</el-button>
        <el-button plain type="info" @click="onReset">重置</el-button>
        <el-button plain type="primary" :icon="Plus" @click="onAddQuestion">添加题目</el-button>
      </el-form-item>
    </el-form>
    <el-table height="526px" :data="questionList">
      <el-table-column prop="questionId" width="180px" label="题目id" />
      <el-table-column prop="title" label="题目标题" />
      <el-table-column prop="difficulty" label="题目难度" width="90px">
        <template #default="{ row }">
          <div v-if="row.difficulty === 1" style="color:#3EC8FF;">简单</div>
          <div v-if="row.difficulty === 2" style="color:#FE7909;">中等</div>
          <div v-if="row.difficulty === 3" style="color:#FD4C40;">困难</div>
        </template>
      </el-table-column>
      <el-table-column prop="createName" label="创建人" width="140px" />
      <el-table-column prop="createTime" label="创建时间" width="180px" />
      <el-table-column label="操作" width="100px" fixed="right">
        <template #default="{ row }">
          <el-button type="text" @click="onEdit(row.questionId)">编辑
          </el-button>
          <el-button type="text" class="red" @click="onDelete(row.questionId)">删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>
    <el-pagination background size="small" layout="total, sizes, prev, pager, next, jumper" :total="total"
      v-model:current-page="params.pageNum"  v-model:page-size="params.pageSize"
      :page-sizes="[1, 5, 10, 15, 20]" @size-change="handleSizeChange" @current-change="handleCurrentChange" />
  
    <question-drawer ref="questionEditRef" @success="onSuccess"></question-drawer>
  </template>
  
  <script setup>
  import { Plus } from "@element-plus/icons-vue"
  import Selector from "@/components/QuestionSelector.vue"
  import { getQuestionListService, delQuestionService } from "@/apis/question"
  import { reactive, ref } from "vue";
  import QuestionDrawer from "@/components/QuestionDrawer.vue"
  
  const params = reactive({
    pageNum: 1,
    pageSize: 10,
    difficulty: '',
    title: ''
  })
  
  const questionList = ref([])
  const total = ref(0)
  
  async function getQuestionList() {
    const result = await getQuestionListService(params)
    console.log(result)
    questionList.value = result.rows
    total.value = result.total
  }
  getQuestionList()
  
  function handleSizeChange(newSize) {
    // params.pageSize = newSize
    params.pageNum = 1
    getQuestionList()
  }
  
  function handleCurrentChange(newPage) {
    // params.pageNum = newPage
    getQuestionList()
  }
  
  function onSearch() {
    params.pageNum = 1
    getQuestionList()
  }
  
  function onReset() {
    params.pageNum = 1
    params.pageSize = 10
    params.title = ''
    params.difficulty = ''
    getQuestionList()
  }
  
  const questionEditRef = ref()
  // 添加
  const onAddQuestion = () => {
    questionEditRef.value.open()
  }
  
  
  function onSuccess(service) {
    if (service === 'add') {
      params.pageNum = 1
    }
    getQuestionList()
  }
  
  async function onEdit(questionId) {
    questionEditRef.value.open(questionId)
  }
  
  async function onDelete(questionId) {
    await delQuestionService(questionId)
    params.pageNum = 1
    ElMessage.success('成功删除题目')
    getQuestionList()
  }
  </script>